JP2017503003A - Shaving care composition for liquid dispensing razor - Google Patents

Abstract

A liquid dispensing razor comprising a reservoir containing a shaving care composition. The shaving care composition comprises water, one or more lipophilic conditioning agents, one or more thickeners including an electrolytic texture-responsive polymer, one or more emulsifiers, and one or more lubricants. ,including. The shaving care composition is delivered to the skin by a razor, soothing irritation to the skin during shaving and providing a moisturizing effect. The mixing of chemistry within the razor results in a gradual change in consumer skin condition and a technical skin moisturizing effect.

Description

  Several different composition dispensing razors are known. For example, U.S. Pat. Nos. 7,007,389, 6,308,413, 4,753,006, 4,635,361, 6,986,207, See 5,855,066 and 4,129,942. These and other dispensing razors have been described as being capable of dispensing various types of shaving related formulations such as transparent or translucent shaving gels or lotions.

  For example, a composition dispensing shaver having a plurality of shaver heads comprising a rotating blade cutter capable of dispensing a lubricant said to reduce friction between the razor head and the cutter and the skin is disclosed in U.S. Pat. 2008/0216322 and US Reissue Patent 038934. In addition, Phillips Norelco recently sold a composition dispensing razor under the name Cool Skin Shaver®. This shaver has a large main head that houses multiple rotating blades, distributes Nivea For Men® moisturizing shave lotion from the center of the rotating blades, and the composition covers the razor head and cutter It is supposed to reduce friction with the skin. A kit comprising a razor and a moisturizing composition is also disclosed. See, for example, US Patent Application Publication Nos. 2007/0137042 and 2008/0317697.

  Formulations that are easy to flow, i.e. less viscous, such as those where the formulator wants to spread the composition into separate areas but quickly contact and / or coat large surfaces (eg razor heads and cutters) It may be desirable in some cases. However, in order to suspend the dispersed phase material (emulsions, particles, etc.) or to prevent the product from flowing out of the part of the skin where treatment is required or otherwise the product is not displaced. It may be desirable to be thick enough. Many different types of thickeners and viscosity modifiers can affect the viscosity and rheology of the composition. However, many of these ingredients affect other properties of the composition when added (such as making the composition thready or tacky, or making the composition cloudy or opaque). Examples of transparent and / or non-foamed skin care compositions of various thicknesses and viscosities are known. For example, International Publication No. 93/18740, British Patent No. 2236760, U.S. Pat. Nos. 2,833,693, 3,072,536, 4,585,650, and 4,917,844. No. and 6,627,185.

  The number of device and composition combinations is very large. Furthermore, the number of implementations can be almost infinite, further considering the many different types of personal care compositions that can be used. Composition distribution that can dispense a composition that helps reduce skin irritation and irritation and dry skin, and improve shaving closeness, despite an almost infinite number of potential combinations of features There remains a need for equipment.

  There is a need in the art for improved shaving formulations that address these issues. To address these needs, the present invention combines the chemistry within the razor to provide lubrication at the point needed and during shaving when the skin is most sensitive. Skin conditioning is performed to provide a skin and conditioning effect after shaving.

US Patent No. 7,007,389 US Pat. No. 6,308,413 US Pat. No. 4,753,006 U.S. Pat. No. 4,635,361 US Pat. No. 6,986,207 US Pat. No. 5,855,066 U.S. Pat. No. 4,129,942 US Patent Application Publication No. 2008/0216322 US Reissue Patent No. 038934 US Patent Application Publication No. 2007/0137042 US Patent Application Publication No. 2008/0317697 International Publication No. 93/18740 British Patent No. 2236760 U.S. Pat. No. 2,833,693 U.S. Pat. No. 3,072,536 U.S. Pat. No. 4,585,650 US Pat. No. 4,917,844 US Pat. No. 6,627,185

  A liquid dispensing razor comprising a reservoir containing a shaving care composition. The shaving care composition comprises water, one or more lipophilic conditioning agents, one or more thickeners including an electrolytic texture-responsive polymer, one or more emulsifiers, and one or more lubricants. ,including. The shaving care composition is delivered to the skin by a razor, soothing irritation to the skin during shaving and providing a moisturizing effect. The advantage of including an electrolytic texture responsive polymer in the chemistry of a shaving care composition is its ability to “drop off” beneficial ingredients during shaving to improve functionality or effectiveness. Electrolytic texture-responsive polymers lose their suspending function in the presence of a slight amount of electrolytes (salts in the water, surfactants that remain on the skin, electrolytes on the skin), thereby releasing the main lubricating and conditioning components from the formulation. The The emulsifier cooperates with this “shedding” behavior to make the distribution across the cartridge / skin uniform and to enhance the adhesion of the dispersed phase components to the skin. The mixing of chemistry within the razor results in a gradual change in consumer skin condition and a technical skin moisturizing effect.

  Other features and advantages of the invention will be apparent from the description and drawings, and from the claims.

It is a side view of the wet shaving razor of this invention. It is a bottom view of the wet shaving razor of this invention. It is a top view of the wet shaving razor of this invention. It is a top view of the razor cartridge connection structure of this invention. It is a rear view of the razor cartridge connection structure of this invention. It is a front view of the razor cartridge connection structure of this invention. It is a perspective view of the cross section of the razor cartridge of the wet shaving razor shown in FIGS. It is a perspective view of the connector port of the wet shaving razor shown in FIGS. It is a perspective view of the connector port of the wet shaving razor shown in FIGS. FIG. 6b is a perspective view of an alternative embodiment of the connector port shown in FIGS. 6a and 6b. It is sectional drawing of the pump of the wet shaving razor shown in FIGS. It is sectional drawing of the pump shown in FIG. It is a side view of the reservoir of the wet shaving razor shown in FIGS. 1 is a perspective view of a package including a replaceable razor cartridge and a replaceable fluid reservoir according to the present invention. FIG.

  In selecting a composition for use in a fluid dispensing razor, it has been found that it is particularly desirable to select a composition that is sufficiently thick and viscous that does not flow out of the skin or razor after being dispensed. . This allows the composition to be dispensed through a pump that requires a continuous flow from the reservoir to the razor during operation of the pump and ensures that the entire contents of the reservoir are drained during use. The need to be thin is balanced. In addition, moisturizing compositions include, but are not limited to, hydrating the hair prior to shaving, moisturizing the skin during the hair removal process, skin lubrication to reduce friction during shaving, etc. It may be desirable to use with a composition dispensing razor to enable the effects of One skilled in the art understands that moisturizing can include hydration of the skin or hair, or lubrication of the hair or skin to increase slip and reduce friction between the composition dispensing device and the skin. Will do.

1. Shaving care composition:
The present invention provides a shaving care composition for a liquid dispensing razor (LDR) having desirable properties that improve the shaving experience. Without being bound by theory, it is believed that the compositions within the shaving care formulations of the present invention interact synergistically to provide an improved experience.

  The shaving care compositions of the present invention are rooted in the skin care thickening chemistry combined with moderate nonionic surfactant emulsifiers and polymeric lubricants to make them more suitable for shaving applications. Specifically, the surfactant improves spreading, wetting, and ease of rinsing, while the lubricant helps protect and slip during the shaving process. In addition, the shaving care composition includes glycerin and degraded phase lipids composed of a hydrophobic oil that is smooth, moisturized, and traps moisture. More generally, a composition is a chemical platform to which a large number of chemical variants (and consumer-induced effects) can be delivered.

  The chemistry advantage of shaving care compositions is centered on formulations that can suspend major benefit agents (eg, dispersed phase conditioning oil) in a continuous, water- and polymer-occupied continuous phase. expand. The viscoelastic behavior of the system is mainly controlled by this continuous phase. This property allows a wide range (both type and concentration) of beneficial components to be suspended in a dispersed phase, while maintaining consistent fluid properties / behavior in the liquid dispensing razor piping detailed below. .

  Another advantage of the chemistry of a shaving care composition lies in its ability to “drop off” the active ingredient only from the dispersed phase during shaving to improve functionality or effectiveness. This is accomplished by using an electrolytic texture-responsive polymer that loses suspension function in the presence of a slight amount of electrolyte (salt in water, surfactant remaining on the skin, electrolyte on the skin). This formulation then releases the main lubricating and conditioning components. A low concentration of emulsifying surfactant cooperates with this “shedding” behavior to make the dispersion across the cartridge / skin uniform and to enhance the adhesion of the dispersed phase components to the skin.

Water The shaving care composition of the present invention contains water. In one embodiment, the shaving care composition comprises at least about 30% water by weight. In an alternative embodiment, the shaving care composition comprises at least about 40% water by weight. In an alternative embodiment, the shaving care composition includes at least about 50% moisture by weight.

Lipophilic Skin Conditioning Agent The shaving care composition of the present invention uses one or more lipophilic skin conditioning agents. The skin conditioning agent concentration can range from about 1% to about 50% by weight of the base composition, alone or collectively. Some preferred concentrations include greater than about 5%, about 10% to about 40%, and about 13% to about 30%. It should be understood that the appended claims not specifying a concentration of lipophilic skin conditioning agent are not limited to the concentrations set forth in this paragraph.

  Exemplary skin conditioning agents include hydrocarbons selected from the group consisting of alkyl ethers, mineral oils, isoparaffins, hydrogenated polyisobutenes greater than C20, polymeric hydrocarbons, esters, ethers, and silicones, and branched C16-C22 alkyls. Examples thereof include esters composed of a chain and a monoalkyl group composed of a linear or branched C1-C6 alkyl chain. Some preferred skin conditioning agents include isostearic acid derivatives. This includes, for example, isostearyl isostearate, isopropyl isostearate, isopropyl palmitate, isopropyl myristate, PPG-15 stearyl ether, petrolatum, dimethicone, dimethiconol, and mixtures thereof. Other skin conditioning agents known to those skilled in the art may also be used depending on the personal care composition and the shape of the targeted skin effect.

  In one embodiment, two or more hydrocarbon phases are preblended prior to emulsification. It has been found that pre-blends of such ingredients can lead to improved touch. Examples include petrolatum blended with mineral oil or isopropyl palmitate.

  Skin conditioning agents can also help reduce the coefficient of friction of the personal care compositions described herein in the form of shaving compositions. The reduced friction can reduce the possibility of skin irritation that may result from contacting the skin with the razor blade more than once. The use of a skin conditioning agent in this context may also allow the formulation to be flexible with respect to the type and concentration of lubricant (as described in more detail below) included in the shaving preparation.

  In one embodiment of the invention, the particle size of the dispersed phase skin conditioner comprises less than 20 micrometers, preferably less than 15 micrometers, more preferably less than 10 micrometers, consisting of 95% of the weight of the dispersed phase. Most preferably it has an average particle size of less than 5 micrometers. The particle size is measured using a Horiba particle size analyzer and is reported as a D50 value. Without being bound by theory, especially during shaving when the shaving composition is placed in front of the razor blade, or during a razor restroke when the composition is attached to the skin, Smaller particle sizes are very important in order for the dispersed phase skin conditioner to be retained on the skin. It has been recognized that the skin is not flat and smaller particles can attach and remain in the skin recesses and around the hair follicle more easily than larger particles.

Thickener The shaving care composition of the present invention comprises from about 0.1% to about 5% by weight of the composition, alternatively from about 0.1% to about 4%, alternatively from about 0.25% to about 3% by weight of one or more thickeners.

  Non-limiting classes of thickeners include those selected from: Carboxylic acid polymers, cross-linked polyacrylate polymers, polyacrylamide polymers, polysaccharides, clays, gums, and mixtures thereof where appropriate.

  In one embodiment, the composition herein comprises a carboxylic acid polymer, a cross-linked polyacrylate polymer, a polyacrylamide polymer, a polysaccharide, and mixtures thereof, more preferably a carboxylic acid polymer, a polyacrylamide polymer, a poly Thickeners selected from saccharides and mixtures thereof.

  Preferred thickeners / suspending agents include electrolytic texture sensitive polymers that become shear thinning when in solution. Shear thinning is a property that facilitates the spreading and wicking of liquids. It has been discovered that electrolytic texture responsive polymers have a desired performance profile. Without being bound by theory, the electrolytic texture-responsive polymer interacts with the residual surfactant or electrolyte remaining on the skin, and is a lubricant and / or suspended for spreading on the razor and skin surface. Releases conditioning agent. Preferred electrolytic texture sensitive polymers include polyacrylamide, hydroxyethyl acrylate / acryloyl dimethyl taurate sodium copolymer, sodium acrylate / acryloyl dimethyl taurate copolymer, ammonium polyacrylate, sodium acrylate / acryloyl dimethyl taurate / dimethyl acrylamide cloth. Polymers, hydroxyethyl acrylate / acryloyldimethyltaurate sodium copolymer available from Seppic, or carboxylic acid polymers (carbomers) such as Ultrez 10, Carbopol 934, Carbopol 980, and ETD 2050, available from Lubrizol, or Clariant Acryloyldimethyltauri Ammonium / VP copolymer, acryloyl sodium taurate / VP copolymer, including but ammonium acryloyldimethyltaurate / methacrylic acid Beheneth-25 Crosspolymer, without limitation. The most preferred electrolytic texture sensitive polymer is polyacrylamide which can be used as Sepigel 305 (polyacrylamide and C13-14 isoparaffin and laureth-7).

Emulsifiers The shaving care composition of the present invention is about 0.1% to about 20%, alternatively about 0.5% to about 15%, alternatively about 1.0% to about 12% by weight of the composition. % Of one or more emulsifiers.

  Non-limiting examples of emulsifying surfactants useful in the compositions of the present invention include McCutcheon's, Detergents and Emulsifiers, North American edition (1986) (published by Allred Publishing Corporation, and McCutcheon's Falcons's). It is disclosed in North American Edition (1992). Preferred emulsifiers are nonionic surfactants / emulsifiers. Non-limiting useful emulsifiers described herein include alkyl glucosides, alkyl polyglucosides, polyhydroxy fatty acid amides, alkoxylated fatty acid esters, sucrose esters, alkoxylated fatty alcohols, amine oxides, and mixtures thereof. Those selected from the group consisting of: Most preferred are alkoxylated fatty alcohols, alkyl glucosides, and mixtures thereof.

Lubricant The shaving composition of the present invention is about 0.1% to about 8%, alternatively about 0.1% to about 5%, alternatively about 0.2% to about 3% by weight of the composition. % Of one or more lubricants may be used.

  Exemplary lubricants include lubricious water-soluble polymers, water-insoluble particles, and hydrogel-forming (or water-swellable) polymers, and mixtures thereof.

  Useful lubricious water soluble polymers may have a molecular weight greater than about 300,000 to 15,000,000 daltons, preferably greater than about 1,000,000 daltons. Non-limiting examples of suitable lubricious water soluble polymers include polyethylene oxide, polyvinyl pyrrolidone, and polyacrylamide. Non-limiting beneficial water-insoluble particles may include inorganic particles or organic polymer particles. Hydrogel-forming polymers are typically highly hydrophilic polymers that form organized nano-scale, three-dimensional domains in water. Additional polymeric lubricants include hydroxyalkyl cellulose polymers such as hydroxyethyl cellulose and hydroxypropyl cellulose, cellulose derivatives such as carboxymethyl cellulose and cellulose methyl ether, and xanthan gum, carrageenan gum, guar gum, locust bean gum, and hydroxy Examples include polysaccharide gums such as propyl guar gum.

Sensory Component In one embodiment of the invention, the composition comprises a sensory molecule or a mixture of sensory molecules. Sensory molecules can be substances that provide a sensation of thermal change such as heating or cooling. Applicants have discovered that the addition of sensory molecules using this composition results in a long lasting skin sensation and comfort effect. Non-limiting examples include p-menthane-3,8-diol, isopulegol, methoxypropane-1,2, -diol, curcumin, menthyl lactate, gingerol, icilin, menthol, tea tree oil, methyl salicylate, camphor, peppermint Oil, N-ethyl-p-menthane-3-carboxamide, N- [4- (cyanomethyl) phenyl] -2-isopropyl-5-methylcyclohexanecarboxamide, ethyl 3- (p-menthane-3-carboxamide) acetate , 2-isopropyl-N, 2,3-trimethylbutyramide, menthone glycerol ketal, and mixtures thereof.

Gel network The shaving composition is substantially free of gel network phase. As used herein, the term “gel network” refers to a lamellar or vesicular solid crystalline phase comprising at least one aliphatic amphiphile. The present invention comprises less than about 3%, alternatively less than about 1%, alternatively less than about 0.5% of at least one aliphatic amphiphile. Gel networks have been found to reduce the rinsing properties of these systems. Aliphatic alcohol gel networks have been used for many years in cosmetic creams and hair conditioners. A gel network is a resolidified liquid crystal gel phase formed by an aliphatic amphiphile (eg, cetyl or stearyl alcohol) and a hydrophilic phase (eg, water). This phase is formed by a re-solidification process after melting with a hydrophilic phase. The gel network typically has a temperature transition below the melting temperature of its own aliphatic amphiphile.

Optional Ingredients The shaving care composition may further comprise additional optional ingredients. Suitable additional optional ingredients include perfumes, preservatives, chelating agents, sensory agents (such as menthol), desquamating actives, anti-acne agents, anti-wrinkle / anti-skin atrophy agents, anti-aging / radical scavengers, flavonoids, Inflammatory agent, anti-cellulite agent, surface anesthetic agent, tanning active substance, skin lightening agent, skin soothing and healing active substance, antibacterial active substance, sunscreen active substance, skin appearance improver, wetting agent, and humidifier (glycerin, glycol) , Sorbitol, etc.), and others of the same type. Such optional ingredients are described in detail in US patent application Ser. No. 11 / 367,918 (filed Mar. 3, 2006). Preferred additional optional ingredients include salicylic acid, opacifiers (such as mica and titanium dioxide), fragrances, hydrophilic conditioning agents (such as glycerin), and skin sensates (such as menthol).

  The shaving care composition of the present invention may comprise salicylic acid, its isomers, tautomers, salts, and derivatives thereof. Alternatively, the composition comprises about 0.001% to about 5% salicylic acid. Alternatively, the composition comprises about 0.01% to about 2% salicylic acid. Alternatively, the composition comprises about 0.1% to about 1% salicylic acid. Without being bound by theory, it is believed that salicylic acid is effective in treating acne on the skin. Furthermore, salicylic acid has the function of treating and / or reducing the presence of acne on the skin. Such treatment with the shaving care composition of the present invention involves applying the shaving care composition to the skin via a razor and shaving the skin treated with the shaving care composition.

  Derivatives of salicylic acid include, but are not limited to, any compound in which the CH3 groups are substituted individually or in combination with amides, esters, amino groups, alkyls, and alcohol esters. Tautomers of salicylic acid are isomers of salicylic acid that can be easily changed from one another and therefore usually exist in equilibrium. Thus, tautomers of salicylic acid can be described as having the chemical formula C7H6O3 and generally have a similar structure to salicylic acid.

  The compositions of the present invention comprise from about 0.001% to about 5%, alternatively from about 0.01% to about 2%, alternatively from about 0.1% to about 1% α- or β-hydroxy acid, and Derivatives, salts, isomers, and tautomers thereof may be included. Non-limiting examples of α- and β-hydroxy acids include α-hydroxybutyric acid, α-hydroxyisobutyric acid, α-hydroxyisocaproic acid, α-hydroxyisovaleric acid, atrolactic acid, β-hydroxybutyric acid, β -Phenyllactic acid, β-phenylpyruvic acid, citric acid, citric acid ethyl pyruvate, galacturonic acid, glucoheptonic acid, glucoheptono-1,4-lactone, gluconic acid, glucuronolactone glucuronic acid, glucuronolactone, Examples include glycolic acid, isopropyl pyruvate, lactic acid, malic acid, methyl pyruvate, saccharic acid, saccharic acid 1,4-lactone, tartaric acid, tartronic acid, and mixtures thereof.

  An opacifier may be added to the shaving care composition of the present invention. The opacifier may be an inorganic or organic compound. Examples of inorganic opacifiers include titanium dioxide, zinc oxide, talc, mica or coated mica (by titanium, tin, or iron oxide, or bismuth oxychloride), aluminum magnesium silicate, bismuth oxychloride, or other Minerals are mentioned. These compounds can be added as powders, dispersions, or composites. Organic opacifiers include, for example, opaque emulsions (including, for example, styrene / PVP copolymers, vinyl polymers, or latexes), metal salts of amines containing 14-20 carbon atoms per molecule, 14- Examples include alkanolamides containing 20 carbon atoms, organic alcohols containing 14-20 carbon atoms per molecule, stearic acid, glycol mono- or distearate, propylene glycol and glycerol monostearate, and insoluble salts of palmitic acid. Mixtures of these opacifiers may be used. The opacifying additive is typically included in an amount from about 1% to about 6%, preferably from about 2% to about 5% by weight of the composition.

  The following examples are included to further illustrate representative shaving care compositions of the present invention.

^*重量比率を基準とした表１〜３のパーセンテージ
‡Ｇｉｖａｕｄａｎ ＳＡからＥｖｅｒｃｏｏｌ Ｇ−１８０として入手可能なＮ−［４−（シアノメチル）フェニル］−２−イソプロピル−５−メチルシクロヘキサンカルボアミド。

^* Percentages in Tables 1-3 based on weight ratio ‡ N- [4- (cyanomethyl) phenyl] -2-isopropyl-5-methylcyclohexanecarboxamide available as Evercool G-180 from Givaudan SA.

The examples in Tables 1-3 above are made according to the following method.
1. Sufficient water is weighed from Phase C into the container to hold the entire batch during mixing and to heat to above 60 ° C. The remaining ingredients are added to form a uniform mixture, allowing sufficient mixing, melting, dispersion, and / or incorporation for each addition.
2. Weigh the water from Phase A into a separate container and heat the contents to above 60 ° C. while mixing.
3. Add remaining ingredients from Phase A and mix until completely dissolved and dissolved.
4). Weigh the material from Phase B into a separate container and heat the contents to above 60 ° C. while mixing.
5. While applying high shear to Phase A using a homogenizer / mill, slowly add the contents of Phase B to the vessel containing Phase A. Continue homogenization after the addition is complete.
6). Stop homogenization of the combined phases A and B and add the mixture to the vessel containing phase C.
7). Sodium hydroxide is used to adjust the pH of the formulation containing the carbomer.
8). Begin cooling the batch to below 45 ° C while continuing to mix.
9. When below 45C, continue to add material to Phase D and continue mixing.
10. Cool to below 30 ° C and make up with water to an appropriate amount.

  For products containing menthol, menthyl lactate, or Evercool G-180, these materials are dissolved in a fragrance in a separate container and added to the final batch upon addition of Phase D.

2. Viscoelastic Properties The compositions described herein can be characterized as shear thinning fluids and can be further described using a power law model as follows.

ここで、μ_effは、所定のずり速度でのパスカル秒（Ｐａ．ｓ）単位の有効粘度であり、Ｋはパスカル秒（Ｐａ．ｓ）単位の稠度であり、

Where μ _eff is the effective viscosity in Pascal seconds (Pa.s) at a given shear rate, K is the consistency in Pascal seconds (Pa.s),

はレシプロカル秒（ｓ^-1）単位のずり速度であり、ｎは無次元単位のべき乗則指数である。かかる流体挙動及び特性は、当該技術分野において周知であり、Ｃｈｒｉｓｔｏｐｈｅｒ Ｍａｃｏｓｋｏ（Ｗｉｌｅｙ−ＶＣＨ、１９９４年）著のＲｈｅｏｌｏｇｙ，Ｐｒｉｎｃｉｐｌｅｓ，Ｍｅａｓｕｒｅｍｅｎｔｓ，ａｎｄ Ａｐｐｌｉｃａｔｉｏｎｓに更に詳しく記載されている。流体のずり減粘特性は、べき乗則指数を１未満としたべき乗則モデルによって記述される。本発明の組成物は、べき乗則指数約０．５未満及びべき乗則稠度約５０Ｐａ．ｓ未満、好ましくは約４８Ｐａ．ｓ未満、より好ましくは約４５Ｐａ．ｓ未満、最も好ましくは約３８Ｐａ．ｓ未満を呈する。更に、本発明の組成物は、べき乗則指数約０．５未満及びべき乗則稠度約２０Ｐａ．ｓ超、好ましくは約２３Ｐａ．ｓ超、より好ましくは約２５Ｐａ．ｓ超、最も好ましくは約３０Ｐａ．ｓ超を呈する。１つの好ましい実施形態は、べき乗則指数約０．３６及びべき乗則稠度約３２Ｐａ．ｓを呈する。

Is the shear rate in units of reciprocal seconds (s ⁻¹ ), and n is the power law exponent in dimensionless units. Such fluid behavior and properties are well known in the art and are described in further detail in Christopher Macosko (Wiley-VCH, 1994), Rheology, Principles, Measurements, and Applications. The shear thinning property of a fluid is described by a power law model with a power law index of less than 1. The composition of the present invention has a power law index of less than about 0.5 and a power law consistency of about 50 Pa.s. s, preferably about 48 Pa.s. s, more preferably about 45 Pa.s. s, most preferably about 38 Pa.s. less than s. Further, the composition of the present invention has a power law index of less than about 0.5 and a power law consistency of about 20 Pa.s. s, preferably about 23 Pa.s. s, more preferably about 25 Pa.s. s, most preferably about 30 Pa.s. Exceed s. One preferred embodiment has a power law index of about 0.36 and a power law consistency of about 32 Pa.s. s.

  The flow rheology according to the power law model indicates that the composition behaves as intended within the scope of the present invention of a liquid partition razor. Compositions with shear thinning properties and power law consistency below the preferred minimum mentioned above will flow out of the razor during horizontal storage, will not drip from the razor during product use and will not be delivered to the skin, or may be dispersed in the composition Resulting in phase instability and separation. Products with shear thinning properties and power law consistency above the preferred values will not be easy to dispense through the pump, will be difficult to replenish the pump from the reservoir, or the entire contents of the reservoir will be sufficient during use. It may not be discharged. In addition, products whose shear thinning properties and power law consistency exceed the preferred values may extend to the razor to provide the desired distribution of the product to protect the skin during multiple strokes of the razor. It will not be easy.

3. Viscoelastic Characterization Flow rheological measurements were performed using an AR2000 rheometer (TA Instruments, Rheology Advantage Instrument Control AR V5.7.0 software) and a standard size DIN / coaxial conical cylinder shape (aluminum, stator inner diameter = 15.00 mm, Rotor outer diameter = 14.00 mm, cylinder immersion height = 42.00, gap = 5920 micrometers). The sample is filled by dispensing a known weight (16 g) to the meter, taking care not to allow air bubbles to enter the sample. After sample loading, the flow rheology procedure is completed according to the following procedure. 1. The temperature is equilibrated to 25 ° C. 2. Normalize the effect of filling by pre-shearing at 10 s ^-1 for 60 seconds and then equilibrate for 5 minutes without shear. 3. Collect 10 data points per log shear rate over 5 minutes in a continuous shear rate gradient from 0.001 to 4355.0 s ⁻¹ . Flow rheology is exported and analyzed using Rheology Data Fitting 2.1.3 (software developed by Procter & Gamble, Fabric & Home Care, Process & Equipment Modeling & Simulation using Python programming language). Data points above .01s ⁻¹ are fitted to the power law model.

4). Liquid Dispensing Razor The composition dispensing device of the present invention can be any such device that allows the composition to be dispensed therefrom during the hair removal process. Examples of many types of composition dispensing devices are known. In one embodiment, the composition dispensing device is a liquid dispensing razor with one or more safety razors.

  In one embodiment, a liquid dispensing razor includes a handle and a housing with an opening, a cartridge coupling structure, and a razor cartridge that includes a fluid dispensing member disposed on the cartridge coupling member. The handle has a length that extends from the proximal end to the distal end. The handle is disposed within the handle near the distal end, a cavity for receiving a reservoir of fluid, a connector port disposed at the proximal end, and a length of the handle between the reservoir and the connector port. Manually actuated pumps disposed along.

  The connector port includes a connector port supply end portion having an opening portion, and a connector port discharge end portion having an opening portion having a flow path of the connector port therebetween. The connector port flow path includes a convergent cross section, whereby the cross section of the connector port flow path is reduced from the supply end opening to the discharge end opening. Alternatively, the connector port has a Y-shaped flow path, the connector port supply end has one opening, the connector port discharge end has two openings, and the Y-shape of the connector port between them. A flow path is provided. In this embodiment, the connector port channel comprises a supply end channel leading to two discharge end channels. The supply end channel and the two discharge end channels include a converging cross section, whereby the cross section of each channel is reduced in the direction of flow.

  The razor cartridge includes a housing having a top portion, a bottom portion, a front surface, and a back surface, and a cartridge coupling structure attached to the back surface of the housing. At least one blade is disposed between the top and bottom of the housing, and an opening between the top and bottom extends from the back to the front. The razor cartridge is pivotally coupled to the cartridge connection structure and may be removably coupled to the connection structure. Further, the razor cartridge may include a guard and an elastomeric member disposed on the guard.

  The fluid distribution member is coupled to the cartridge coupling structure. The fluid distribution member includes at least one, preferably two channels, each channel having one fluid distribution member opening at the fluid distribution member supply end and two fluid distribution members at the fluid distribution member discharge end. And an opening. The fluid distribution member flow path converges from the fluid distribution member supply end to the fluid distribution member discharge end, thereby reducing the cross-section of the flow path from the supply end opening to the discharge end opening. . The fluid dispensing member discharge end opening extends to or near the opening in the housing to allow direct contact to the user during shaving. When the cartridge coupling structure is engaged with the proximal end of the handle, the fluid distribution member is in fluid communication with the reservoir and pump via the connector port.

  For connector port configurations having a single converging channel design, a hollow gap or cavity may be placed between the discharge end opening of the connector port and the supply end opening of the distribution member. The hollow gap or cavity may be formed as part of the cartridge connection structure. In the case of a connector port configuration including a Y-shaped channel, the two discharge ends of the connector port channel may be in direct contact with the supply end opening of the fluid distribution member.

  In another embodiment, the razor cartridge includes a housing, a cap, and at least one blade attached to the housing. The blade has a cutting edge in front of the cap. The guard is in front of the blade. The guard defines an elongated recess or trough whose overall width extending parallel to the blade is 70% to 100% of the overall width of the guard. The elongate recess can be in fluid communication with the discharge end opening of the fluid distribution member via an opening in the cartridge housing and can be filled with fluid drawn from the reservoir.

  In order to adjust the flow rate of the fluid relative to the entire swirl range of the cartridge, the discharge end opening of the fluid distribution member is flared. The outer surface of the fluid distribution member adjacent to the discharge end opening is bent concavely toward the opening, and the inner surface of the opening forms an edge. The flare-shaped opening is in contact with the opening of the housing. An elongated recess or trough in the guard that is in fluid communication with the opening can provide an even distribution of fluid along the length of the blade. A microcomb in the guard between the trough and the blade can distribute the fluid evenly over the entire length of the blade.

  The pump is disposed between the reservoir and the connector port. The pump can include a resilient tube inserted between the first connector and the second connector, the first and second connectors including first and second valves, respectively. The first connector is attached to the reservoir and the second connector is attached to the opening of the connector port. The resilient tube has a neutral position where both valves are closed and a second position where one valve is open and the other valve is closed.

  Fluid is stored in a reservoir located in a cavity at the distal end of the handle opposite the connector port. The reservoir is replaceable, includes an outer container that encloses the foldable inner container, and includes a fluid outlet adapted to allow fluid to exit both the foldable reservoir and the container. The orifice located in the outer container is adapted to allow it to flow into or out of the container. The fluid outlet is in fluid communication with a pump that draws fluid from the collapsible reservoir. The fluid outlet may include a fragile seal that is pierced by a perforator at the end of the first connector during connection of the reservoir to the pump. The reservoir can be located at the distal end of the handle and can comprise a container or bottle that is exposed or covered with an end cap.

  1-3 show a liquid dispensing wet shaving razor (100) for dispensing fluid during shaving, including a handle (200) and a razor cartridge (300). The handle (200) has a length (L) that extends from the proximal end (204) to the distal end (206). The handle also houses a reservoir (230) disposed within the handle (200) and a manual differential pump (240) positioned along the length (L) of the handle (200). Of cavities (208). Pump assembly (240) is adapted to dispense fluid from reservoir (230) to connector port (400) at the proximal end (204) of handle (200).

  1-3, the razor cartridge (300) includes a housing (302) having a top (304), a bottom (306), a front surface (308), and a back surface (310). At least one blade (314) is positioned between the top (304) and the bottom (306). The razor cartridge (300) may also include a plurality of blades. For example, US Pat. No. 7,168,173 generally describes a Fusion® razor comprising a razor cartridge with a plurality of blades, commercially available from The Gillette Company. Furthermore, the opening (316) is located between the top (304) and the bottom (306) such that the opening (316) extends from the back surface (310) to the front surface (308). In one embodiment, the housing (302) may also include clips useful for maintaining and maintaining blade stability before, during and after use of the razor.

  The cartridge (300) is attached to the back surface (310) of the housing (302) by a cartridge coupling structure (312). The cartridge connection structure (312) includes two arms (336) extending to pivotally support the housing (302). The cartridge can pivot about a predetermined axis located below the guard surface (330) (openings 316a and 316b can be located at or near the pivot axis detailed below). desirable).

  The razor cartridge (300) may further include a guard (330) and / or a lubrication strip (332) on the front surface (308) located between the top (304) and bottom (302) of the housing (302). . The guard (330) is useful for stretching the skin surface immediately before the skin surface engages the blade, or the first blade (if more than one blade is present). The guard (330) may typically include an elastomeric member that allows a comfortable engagement for the user. U.S. Patent No. 7,168,173 discloses a suitable razor cartridge and elastomeric material without an opening. An elastomer material can be selected as required. Typically, the elastomeric material used is a block copolymer (or other suitable material) having, for example, a 28-60 Shore A durometer.

  The razor cartridge may also include a microcomb (333) shown in FIG. 5 and disclosed in US Pat. No. 8,209,867. The microcomb (333) includes a plurality of protrusions that define a plurality of open slots extending generally perpendicular to the cutting edge. The open slot has a minimum dimension to allow free passage of hair through the cutting edge and a maximum dimension to prevent skin bulge between the slots. The microcomb is placed between the cutting edge and the openings (316a and 316b) in the housing and serves as a flow path that provides an even distribution of fluid in front of the cutting edge.

  The lubricating strip, on the other hand, provides additional treatment to the skin after contact between the fluid and the skin has occurred. The lubricating strip may include the same or additional skin components that are present in the fluid. Suitable lubricating strips include U.S. Pat. Nos. 7,069,658, 6,944,952, 6,594,904, 6,182,365, D424,745, Nos. 6,185,822, 6,298,558, and 5,113,585. The lubricating strip may be located anywhere on the cartridge and includes an electrolyte that further facilitates dispersion of the polymer thickening / suspension component that is released into the skin. The electrolyte can be a charged polymer, salt, surfactant, or a mixture thereof.

  The cartridge connection structure (312) is releasable from the handle (200) as disclosed in US Pat. Nos. D533,684, 5,918,369, and 7,168,173. May be fitted. When such continuous use of the cartridge dulls the blade, this separation of the two components allows the razor cartridge to be replaced. Thus, such a cartridge is freely replaceable and disposable by the user.

  The razor cartridge 300 has a pivot shaft, and the cartridge housing 302 is attached to the cartridge coupling structure (312) around the shaft. In one embodiment, the one or more openings 316a and 316b in the front surface 308 of the cartridge are located at or near the pivot axis. One or more openings allow fluid to be released directly to the skin at or near the predetermined pivot axis. A non-limiting example of a device having a similar arrangement of fluid discharge locations is described in US Pat. No. 6,789,321. In one embodiment, the apparatus includes a plurality of orifices, one or more of the plurality of orifices being located at or near the pivot axis. One or more of the orifices can generally form a line extending over a portion of the pivot axis. The device may have only one orifice extending over a portion of the pivot axis, the orifice having a generally elongated shape that extends laterally toward the outer end of the razor cartridge. By providing one or more orifices disposed along a portion of any fluid dispensed in the pivot axis, a thin but wide ribbon-like fluid is more likely to be formed. Non-limiting examples of suitable orifices are described herein and are also described in US Patent Application Publication No. 201110219621 A1.

Fluid Distributing Member The razor cartridge shown in FIGS. 4a-4c comprises a fluid distributing member (318) coupled to the cartridge coupling structure (312). The fluid distribution member (318) includes two distribution member channels 320a and 320b having two distribution member supply end openings 322a and 322b and two distribution member discharge end openings 326a and 326b. The two fluid distribution member supply end openings 322a and 322b are in fluid communication with the discharge end opening of the connector port when the cartridge coupling structure is engaged with the proximal end of the handle. The member discharge end openings (326a and 326b) are in fluid communication with the openings 316a and 316b of the housing 302. The distribution member channels (320a and 320b) converge from the distribution member supply end openings (322a and 322b) to the distribution member discharge end openings 326a and 326b, whereby the distribution member channels (320a). And 320b) is reduced from two distribution member supply end openings (322a and 322b) to two distribution member discharge end openings (326a and 326b). The cross-section of the distribution member channels (320a and 320b) can be continuously reduced from the supply end openings (322a and 322b) to the discharge end openings (326a and 326b). The cross section may be reduced in the horizontal direction H, the vertical direction V, or both. For example, the cross section of the flow path (320a and 320b) of the distribution member 328 in the connection structure (312) shown in FIGS. 4b and 4c is reduced in both the horizontal direction H and the vertical direction V. When the supply end openings 322a and 322b of the fluid distribution member engage the discharge end opening of the connector port, the fluid distribution member (318) is in fluid communication with the pump (240) and upon actuation of the pump (240) , Fluid is moved from the reservoir (230) in the cavity (208) through the opening (316) to or near the front surface (308) of the housing (302).

  If the flow paths (320b) and (320b) and / or the razor cartridge (300) become clogged or problematic (eg, the blades become dull), the user can identify the cartridge (300) and the associated fluid distribution member (318). ) Can be simply exchanged. The fluid distribution member (318) may be integrally formed with the cartridge connection structure (312). For example, the fluid distribution member (318) may be molded and / or formed as a single assembly using the cartridge coupling structure (312).

  The dispensing end (328) of the dispensing member (318) extends to or near the openings 316a and 316b of the housing (302). In the partial view of the cartridge housing 302 and discharge end 328 of the fluid distribution member 318 shown in FIG. 5, the discharge end (328) is loosely fitted with the razor cartridge (300) at the opening (316b). Are fitted together. To prevent fluid leakage while the razor (100) is not in use, any or all of the openings (eg, 322a, 322b, 326a, and 326b) are check valves, eg, slit valves, duck valves, Or other suitable valves may be included.

  As shown in FIG. 5, the fluid distribution member (318) has a discharge end opening (326a, 326b) at the distribution end (328) and the razor cartridge (300) has an opening (316a, 316b). including. The discharge end openings (326a and 326b) in the dispensing end (328) of the fluid dispensing member (318) may be beveled. As shown, the edges of the discharge end openings (326a and 326b) are arranged obliquely with respect to the opening to accommodate the entire pivoting range of the razor cartridge 300. In this embodiment, the dispensing end (328) protrudes outward and extends through the plurality of openings (316a, 316b) to or near the front surface (308). When the supply end openings (322a and 322b) of the fluid distribution member (318) engage the connector port channel (425), the fluid distribution member (318) is in fluid communication with the pump (240). Actuation of the pump (240) moves the fluid (210) from the reservoir (230) through the openings (316a, 316b) to or near the front surface (308) of the housing (302).

Connector Port The connector port 400 shown in FIGS. 6a and 6b includes a connector port supply end 420 having an opening 410, a connector port discharge end (450) having an opening (440), and a connector port therebetween. The flow path 425 is provided. Connector port flow path 425 includes a convergent cross section, whereby the cross section of the connector port flow path contracts from supply end opening 410 to discharge end opening 440. The reduction of the cross-section means that the area decreases as the flow path proceeds along the flow path from the supply end opening 410 to the discharge end opening 440. For the connector ports shown in FIGS. 6a and 6b, the cross-section can be reduced in the horizontal direction H, the vertical direction V, or both. For example, the cross section of the flow path (425) of the connector port (400) shown in FIGS. 6a and 6b is reduced in the vertical direction V.

  In order to provide a visual indication of fluid flowing through the razor assembly, the connector port 400 may include a transparent or translucent window that provides a visual indication that fluid is flowing through the connector port 400. Transparent or translucent windows may be placed in any part of the exposed connector port. As shown in FIGS. 2 and 6b, the bottom 460 of the connector port 400 may comprise a transparent or translucent window exposed at the bottom of the fluid dispensing wet shaving razor (100).

  As shown in FIG. 7, the connector port 500 includes two connector port discharge end openings 540a and 540b connected to a single connector port supply end opening 510 and a Y between them. It can have a shaped channel. The Y-shaped channel includes a supply end channel 520 that leads to two discharge end channels 530a and 530b. The supply end channel 520 and the two discharge end channels 530a and 530b include convergent cross sections, whereby the cross section of each channel is reduced in the direction of flow. As described above, the reduction in the cross section indicates that the area decreases as the flow path advances along the flow path from the supply end opening 510 to the discharge end opening 540. The cross section may be reduced in the horizontal direction, the vertical direction, or both. In the case of the connector port shown in FIG. 7, the cross section of the flow path 520 at the connector port supply end is reduced in the vertical direction V, and the flow paths 530a and 530b at the two connector port discharge ends are in the horizontal direction H and The image is reduced in the vertical direction V.

  Convergent channels on both the connector port and distribution member converge smoothly in that they converge continuously, as opposed to a stepped convergence divided along the channel. Is preferred. This results in a uniform flow rate that exhibits a minimum pressure drop in the direction of flow along the flow path as well as a maximum pressure drop generated at the discharge end opening of the distribution member. This helps to prevent accumulation where clogging is most likely to occur. Uniform flow rate also exhibits a continuous increase in velocity, which eliminates stagnation or recirculation zones along the flow path, thereby reducing clogging and ensuring first-in-first-out of the fluid. Prevent accumulation. Furthermore, the uniform flow rate reduces the force required to operate the pump, resulting in less actuator (button) force required for fluid distribution during use and priming the pump. The need is reduced.

Pump The fluid dispensing razor pump according to the present invention is a manually operated pump, which can transfer fluid by repeatedly depressing an actuator or button. An assembly view of such a pump assembly 240 is shown in FIG. The pump assembly 240 includes a flexible tube 248 inserted between the first connector 242 and the second connector 244, and an actuator (button) 260 therebetween. The first valve 250 is disposed on the first connector 242 and the second valve 252 is disposed on the second connector 244. The first fluid connector 242 can pierce the fragile seal 238 in the opening 232 of the fluid reservoir 230 to establish a fluid connection between the pump 240 and the fluid reservoir 230. The outer wall 245 of the first fluid connector 242 can be sealed against the inner wall 234 of the fluid reservoir 230 to prevent fluid leakage into the cavity 208 of the handle 200. Accordingly, fluid is directed into the opening 246 of the first fluid connector 242, which is in fluid communication with the pump assembly 240. An elongated resilient tube 248 delivers fluid from the fluid reservoir 230 through the valves 250 and 252 to the connector port 400.

  Actuators 260 (eg, buttons) facilitate fluid delivery from the fluid reservoir 230 to the connector port 400. For example, when the actuator 260 compresses the elastic elastomer tube 248, the actuator 260 can open the second valve 252 and release a predetermined volume of fluid to the connector port 400. By releasing the actuator 260, the elastic elastomer tube 248 can be returned to its uncompressed state. When the elastomeric elastomer tube 248 returns to its uncompressed state, the second valve 252 closes to prevent fluid backflow and the corresponding contamination associated therewith, and the first valve 250 opens to allow the elastomeric elastomer tube 248 to be moved by the actuator 260. Can be filled with fluid for subsequent discharge. This is an iterative process that will be described in detail later.

  As shown in FIG. 8, the second connector 244 is connected to the connector port 400 for fluid communication. For example, the first end 272 of the second connector 244 may be press fit into the supply end opening 410 of the connector port 400. The second connector 244 has a second end 274 having an opening 276 sized to accommodate the second valve 252. The second end 274 of the second connector 244 is connected to the pump 240 and is in fluid communication. The elongated resilient tube 248 has a second end 264 connected to the second end 274 of the second connector 244. The second connector 244 includes a shoulder 256 to prevent the first end 272 of the second connector 244 from extending far into the supply end opening 410 of the connector port 400. The resilient tube 248 has a first end 262 connected to the first connector 242 and in fluid communication. The first connector 242 may be semi-rigid and may have a second end 282 that is press fit into the first end 262 of the resilient tube 248. The second end 282 of the first connector 242 has an opening 286 that extends through the first connector 242. The opening 286 is dimensioned to accommodate the first valve 250 (for example, a duckbill valve). The first connector 242 may have a first end 280 that is press fit into the opening 232 of the reservoir 230. The first end 280 of the first connector 242 includes a tip 243 for piercing the fragile seal 238 in the reservoir opening 232. The first connector 242 includes a shoulder 266 with the first end 280 of the first connector 242 extending far into the reservoir opening 232 and the second end 282 far into the resilient tube 248. Prevent extension.

  Valves 250 and 252 may be one-way valves connected in series (eg, check valves, wing valves, and check valves). Examples of one-way valves that can be used include, but are not limited to, ball check valves, swing check valves or tilted disk check valves, stop check valves, lift check valves, and duckbill valves. The arrangement of the valves 250 and 252 inside the first and second connectors 242, 244 saves space and helps prevent the valves 250 and 252 from moving out of position.

  In certain embodiments, the actuator 260 directly contacts and compresses the resilient tube 248. FIG. 9 shows a cross-sectional view of an actuator 260 for a pump 240 according to the present invention. The bottom 266 of the actuator 260 is shaped to conform to the inner contour of the handle cavity 208 and may be optimally curved from front to back to minimize stress on the resilient tube 248. The actuator can be positioned anywhere along the length of the resilient tube 248 between the first valve 250 and the second valve 252, but is preferably located at the center of the resilient tube 248.

  When the actuator 260 is depressed, it compresses the resilient tube 248 to open the second valve 252 and the first valve 250 remains closed. The first and second valves 250 and 252 can each have a flat end when closed. When pressure is applied, the flat end opens and allows liquid to pass through, and when pressure is removed (eg, when the actuator 260 is released from the resilient tube 248), it can be closed to prevent backflow. When the pressure in the resilient tube 248 becomes negative (eg, when the actuator 260 is released and the resilient tube 248 can no longer be compressed and can return to its uncompressed state), the first valve 250 opens ( And the second valve 252 is closed). Elastic properties (break elongation and hardness) and wall thickness can facilitate the return of the elastic tube 248 to its natural state and the generation of negative pressure within the elastic tube 248. When the second valve 252 is closed and the first valve 250 is open, liquid can be delivered from the reservoir 230 through the reservoir opening 234 and through the first valve 250 to the resilient tube 248. By placing the resilient tube 248 between a pair of one-way valves placed in series, the back flow of shavings and microorganisms into the pump 240 and reservoir 230 can be prevented. In certain embodiments, the resilient tube 248 can return the actuator 260 to its original position. Thus, an additional return force member (eg, a spring) is not necessarily required to return the actuator 260 to its original position. The resilient tube 248 is made by extrusion or molding from a material with a Shore A hardness of about 40 to about 90 (ISO 868), which includes thermoplastic elastomers (TPEs), polyvinyl chloride (PVC), silicone, rubber, Or any mixture thereof, but not limited thereto. The resilient tube 248 may comprise a material having a tensile break strength of about 8 MPa, 9 MPa, or 10 MPa to about 12 MPa, 13 MPa, or 14 MPa (ISO 37). The resilient tube 248 can comprise a material having a percent elongation to break of about 300% mm2, 400%, or 500% to about 600% mm2, 700%, or 800% (ISO 37). The resilient tube 248 has a nominal wall thickness of about 0.5 mm, 0.75 mm, or 1 mm to about 1.25 mm to provide sufficient flexibility to receive efficient compression of the resilient tube 248 by the actuator 260. 1.5 mm, or 2 mm, but the resilient tube 248 does not become so flexible that it does not return to its original position after repeated compression.

Reservoir cavity 208 includes a reservoir 230 that contains fluid 210. The reservoir 208 can include a replaceable bottle. FIG. 10 shows a reservoir 230 that contains a fluid 210. The reservoir 230 includes an outer container (231) that encloses the collapsible reservoir (233). Container 231 and collapsible reservoir 233 have aligned openings that together form a fluid outlet (235) through which fluid can exit collapsible reservoir (233) and container (231). it can. One or more orifices (237) of the container (231) allow air to flow into the container, thereby enabling pressure correction when the collapsible reservoir (233) is depressed. The reservoir shown in FIG. 10 also includes a plurality of ribs 239 that surround the bottom end of the container 231. The ribs 239 provide an outer surface that is easy to grip when removing the container 231 from the cavity 208, and inserting the container 231 into the cavity 208 to connect the fluid outlet 235 of the reservoir 230 to the first connector 242 of the pump 240. Provides a foldable accordion effect. As the plurality of ribs collapse, the container 231 compresses the foldable reservoir 233 and pushes the fluid 210 from the foldable reservoir 233 to the pump. This causes the pump 240 to be primed and ready for use.

  A fluid 210 (eg, a lotion or gel) can be retained in the fluid reservoir 230. After the fluid 210 is used up, the fluid reservoir 230 may be removed and replaced. The handle 200 can define a cavity 208 configured to receive the fluid reservoir 230. In certain embodiments, the fluid reservoir 230 may be a delamination bottle or sachet. In other embodiments, the fluid reservoir 230 may be a blow molded or injection molded plastic bottle.

  As shown in FIG. 8 (described above), the first connector 242 removably engages the fluid reservoir 230 to establish a fluid connection between the fluid reservoir 230 and the pump assembly 240. The outer wall 245 of the first connector 242 can be sealed against the inner wall 236 of the fluid reservoir 230 to prevent leakage of fluid into the handle cavity 208. The first connector 242 includes a tip 243 configured to pierce the seal (238) of the fluid reservoir 230 to establish a fluid connection between the pump assembly 240 and the fluid reservoir 230. In certain embodiments, the tip 243 may be angled and / or angled (eg, pyramidal, conical) to facilitate penetration of the seal.

  The container may have multiple chambers that can be mixed as fluid is dispensed. Fluids include shaving gel, shaving foam, shaving lotion, skin treatment composition, conditioning aids, etc., all of which are used to prepare the skin surface before the blade engages the skin be able to. In addition, such materials are suitable for skin and / or hair, which may be useful for many different desirable effects including exfoliation, cooling, cleaning, moisturizing, warming or heat generating, conditioning, etc. May contain other beneficial agents. Suitable benefit agents for skin and / or hair contained in a razor fluid are disclosed in US Pat. No. 6,789,321. For example, suitable benefit agents include shaving soaps, lubricants, skin conditioners, skin moisturizers, hair softeners, hair conditioners, fragrances, skin cleansers, bacterial or medical lotions, blood coagulants, anti-inflammatory agents, Examples include but are not limited to astringents and combinations thereof. In certain embodiments, the fluid may be contained in a disposable or reusable sachet that is further contained within the handle cavity.

  A liquid dispensing razor according to the present description includes a consumable cartridge that needs to be replaced after multiple uses as a result of blunting of the blade, clogging of the dispensing member, or both. However, the liquid dispensing razor also includes a fluid reservoir that needs to be replaced periodically. The disposable cartridge and the replaceable fluid reservoir can be packaged separately, but can be packaged together and made available to the consumer in a single package. For example, the replaceable cartridge 610 and the replaceable fluid reservoir 620 can be packaged together in a blister pack package 600 as illustrated in FIG. The number of replaceable cartridges and replaceable fluid reservoirs per package may be the same or different. However, without being bound by theory, a replaceable fluid reservoir is an amount of fluid that correlates to the number of shavings per razor cartridge, so that a consumer replaces the razor cartridge at the same time that the fluid reservoir is replaced. May be included.

  It should be understood that any maximum numerical limit given throughout this specification will include any smaller numerical limits as if such lower numerical limits were explicitly set forth herein. All minimum numerical limits given throughout this specification include all higher numerical limits as if such higher numerical limits were explicitly set forth herein. All numerical ranges given throughout this specification are all narrower numerical ranges that fall within such wider numerical ranges, as if all such narrow numerical ranges were explicitly stated herein. Include as if.

  The dimensions and values disclosed herein are not to be understood as being strictly limited to the exact numerical values recited. Instead, unless otherwise stated, each such dimension is intended to mean both the recited value and a functionally equivalent range surrounding that value. For example, a dimension disclosed as “40 mm” is intended to mean “about 40 mm”.

  All references cited herein, including any cross-references or related patents or related applications, are hereby incorporated by reference in their entirety, unless expressly excluded or otherwise limited. Citation of any reference is not an admission that such reference is prior art to any invention disclosed or claimed in this application, and such reference alone or in any other reference Nor does it admit that any such invention is taught, suggested or disclosed in any combination. In addition, to the extent that any meaning or definition of a term in this document conflicts with the meaning or definition of the same term in a document incorporated by reference, the meaning or definition given to that term in this document applies. Shall be.

  While particular embodiments of the present invention have been illustrated and described, it would be obvious to those skilled in the art that various other changes and modifications can be made without departing from the spirit and scope of the invention. Accordingly, all such changes and modifications included within the scope of this invention are intended to be covered by the appended claims.

Claims (15)

A liquid dispensing razor comprising a reservoir containing a shaving care composition, wherein the shaving care composition comprises:
water and,
One or more lipophilic skin conditioning agents;
One or more thickeners including an electrolytic texture-responsive polymer;
One or more emulsifiers;
A liquid dispensing razor comprising one or more lubricants;   The liquid dispensing razor of claim 1, wherein the composition comprises from about 1% to about 50% by weight of the one or more lipophilic skin conditioning agents.   The liquid dispensing razor of claim 1, wherein the composition comprises about 0.1 wt% to about 5 wt% of the one or more thickeners.   The liquid dispensing razor of claim 1, wherein the composition comprises from about 0.1% to about 20% by weight of the one or more emulsifiers.   The liquid dispensing razor of claim 1, wherein the composition comprises from about 0.1% to about 8% by weight of the one or more lubricants.   The liquid dispensing razor of claim 1, further comprising about 0.001 wt% to about 5 wt% salicylic acid.   The electrolytic texture-responsive polymer is polyacrylamide, hydroxyethyl acrylate / acryloyl dimethyl taurate copolymer, sodium acrylate / acryloyl dimethyl taurate copolymer, ammonium polyacrylate, sodium acrylate / acryloyl dimethyl taurate / dimethyl acrylamide crosspolymer , Hydroxyethyl acrylate / acryloyl dimethyl sodium taurate copolymer, carboxylic acid polymer, Carbopol 980 and ETD 2050 Behenez-25 2. A liquid dispensing razor according to claim 1 selected from the group consisting of a loss polymer.   The liquid dispensing razor of claim 1, wherein the electrolytic texture responsive polymer is polyacrylamide.   The liquid dispensing razor according to claim 1, wherein the lipophilic skin conditioning agent is composed of a lipid material consisting of petrolatum, pre-blended with another lipid oil selected from mineral oil or fatty acid ester.   The shaving care composition has a power law index less than about 0.5 and about 50 Pa.s. s and 20 Pa.s. The liquid dispensing razor of claim 1, having a power law consistency greater than s. A liquid dispensing razor comprising a reservoir containing a shaving care composition, the shaving care composition comprising:
water and,
From about 1% to about 50% by weight of one or more lipophilic skin conditioning agents;
From about 0.1% to about 5% by weight of one or more thickeners;
From about 0.1% to about 20% by weight of one or more emulsifiers;
A liquid dispensing razor comprising from about 0.1% to about 8% by weight of one or more lubricants.   12. The liquid dispensing razor of claim 11, wherein the composition comprises from about 5% to about 50% by weight of the one or more affinity skin conditioning agents.   The liquid dispensing razor of claim 11, wherein the composition comprises from about 0.25 wt% to about 3 wt% of the one or more thickeners.   12. A liquid dispensing razor according to claim 11, wherein the composition comprises from about 1.0% to about 12% by weight of the one or more emulsifiers.   The shaving care composition has a power law index less than about 0.5 and about 50 Pa.s. s and 20 Pa.s. 12. A liquid dispensing razor according to claim 11, having a power law consistency greater than s.

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